Monotype casting-machine.



L. J. KROBSSER.

MONOTYPE CASTING MACHINE.

APPLICATION FILED JAN.24, 1912.

Patented June 9, 1914.

3 SHEETS-SHEET 1.

Wane/5M0 L. J. KROESSER.

MONOTYPE CASTING MACHINE.

APPLIOATION FILED JAN. 24, 1912. 099,806. Patented June 9,1914.

' a snnms-snnnm 2.

COLUMBIA PLANOGRAPH 410.. WASHINGTON. D c.

M a m w W F hm g, QR S I y v n 2 U J mm I; m% g \wmw mm n- 3 mm m u D Q 3 MN l mm X h N. v *N \h Q a k\ 0 Z ww X 5% ,Q 0 mi Q\ .IH J N L. J. KROESSER.

MONOTYPE CASTING MACHINE. APPLICATION FILED JAN.24, 1912.

1,099,806. Patented June 9,1914.

3 SHEETS-SHEET 3.

awuwwtoz N v QL (71/60644?! wow,

COLUIIIA WM!" COuWMIIIW. D- C.

UNITED STATES PATENT OFFICE.

LUDWIG J. KRO'ESSER, BOSTON, MASSACHUSETTS.

MONOTYPE CASTING-MACHINE.

1 0 all whom it may concern:

Be it known that I, LUDWIG J. KRoEssER, a subject of the Emperor of Germany, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Monotype CastingMachines, of which the following is a specification.

' This invention relates to improvements in a monotype casting machine.

The object of my invention is to save the time lost in casting dead lines caused by the keyboard operator, and also to save the paper required to X the line out so as not to stop the casting machine.

Hy invention comprises a simple, inexpen sive and highly eiiicient device that can readily be attached to a casting machine without necessitating the drilling or tapping of any part thereof and without interfering with any of the adjustments of the machine.

The monotype key-board perforating machine operates like a typewriter but instead of printing it registers a hole in a strip of paper to correspond to a letter or character. it also registers the justification spaces at the end of a line. The roll of perforated paper is delivered to the cast-ing machine and through the perforations compressed air is forced and the jet of air sets in motion the machinery which controls the matrix case,a rectangular frame containing about two-hundred and twenty-five matrices or little copper blocks, each one of which is a mold corresponding to a character on the key board. This frame is mounted horizontally on a slide which by an ingenious mechanical movement brings out any one of the two-hundred and twenty-five matrices over what is called the mold. The particular matrix thus placed in position is determined by the particular holes punched in the paper ribbon at the keyboardthrough which compressed air is at the precise moment being forced. The mold is closed by the matrix and a jet of molten metal is forced out and the type is cast-its face being formed by the matrix and its body by the mold. The cast type is ejected and takes its place on the galley.

Ordinarily there are two justification wedges, known as the .0005 and .0075 justification wedgesrespectively. In the present mode of operating the casting machine, it is necessary to manually lift the .0005 jus tification wedge so as to shift it and this will Specification of Letters Patent.

Application filed January 24, 1912.

Patented June 9, 1914. Serial No. 673,171.

stop the machine from casting type for one revolution but just as soon as the wedge has been positioned the machine starts casting type again at an inopportune time. By means of my device attached to a casting machine it will be possible to automatically prevent the recasting of the type after the justification wedge has been lifted, as said device is in readiness to be engaged at all times, the arrangement being such that the lifting or setting of the justification wedge .0005 lays the working parts of the casting machine open for said device to perform its function readily and in consequence the ejection of type will be stopped and will not be resumed until the .0075 justification wedge has been shifted to permit the device to be thrown out of engagement thereby starting the machine casting type again.

With the above and further objects in view, my invention consists in the combinatlon, arrangement and details of construction shown in the drawings and then more particularly pointed out in the appended.

claims.

Similar reference characters designate similar parts throughout the respective views of the drawings, wherein Figure 1 is a side elevation thereof, Fig. 2 is a top plan view of the automatic device which I have devised. Fig. 3 is a rear end elevation partly in section of said device.

Fig. 4 is a front elevation of said device. Fig. 5 is a side elevation of a monotype machine showing my device in operative posi tion thereupon, the parts being in normal position, Fig. 6 is a side elevation of a casting machine, in part, showing my device in operative position, the parts having been movedoutof normal position, Figs. 7, 7 and 7 are detail fragmental views. partly in section of the justification wedges engaging the rock lever to be described, three relative positions of the justification wedge being shown, Fig. 8 is a side elevation of another part of a casting machine showing an actuating means for my device, and Fig. 9 is a perspective view of a casting machine showing my device in operative position thereupon.

Reference being made to thedrawings which are merely illustrative of my invention, the parts of a monotype casting machine are shown which are necessary to the operation of my device. The justification wedge lever arms are designated 1. and 2 respectively and the construction and manner of operation of each of the wedges being the same, my description will be limited to one. Arranged to actuate the lever arms 1 and 2 are the lifting levers 3 each of which is'formed with the conventional groove 4 into which an arm will move. The bearing 5 formed upon each lever arm is arranged to move over the top step of each of levers 3.

' l6 and 17 arranged to bear respectively against the rock lever 18. The justification wedges .0005 and .0075 are designated 19 and 20 respectively and are mounted on a common plate 21 shown in Fig. 8. The rock lever 18 is fulcrumed at its center to an arm 22 by means of the stud 23, and the galley trip rod 24 is rigidly connected to the arm 22 bymeans of a nut 25 screwed on the threaded end of said trip rod so that the arm and trip rod may move in unison. The free end of the arm 22 is formed with a shoulder 26 arranged to engage a pin or stud 27 mounted upon the pump trip tube lever 28 mounted movably upon the fulcrum 30, a pin or stud 30* being mounted at the lower end of said lever, and being tapped through the trip tube 31, said tube carrying the trip tube collar 32 arranged to be withdrawn by the trip tube 31 from behind the latch 33 to cause metal to be supplied to cast the type by means well known to those skilled in the art.

A stud 34 depends fro-m the trip tube 31 upon which is secured the free end of a retractile spring 35 having its opposite end removably secured upon the post 36 which post is mounted upon the main stand 37 of the machine.

I will now describe the parts of my automatic pump stop, reference being made to Figs. 1 to 4 exclusively. A tiltable lever 38 is fulcrumed upon a stud 39 spanning the offsets of a bifurcated member 40 formed with a collar or bearing 41 arranged to be mounted upon the post 36 and held rigidly thereto preferably by a set screw 42, said lever 38 being of greater length than the distance between the post 36 and the trip tube lever 28' when said last named lever is in its normal vertical position shown in Fig. 5, being formed at its free end with a concave surface 43 arranged to engage the stud 30 as hereinafter described. Near the free end of the lever 38 fixed rearwardly of the stud 30 is a pivot 44 upon which is fulcrumed a lever 45 so disposed in length that its forward part 46 will normally project forwardly of the lever 38, while the rear end will terminate short of the bearing 41. The forward end of the lever 45 will preferably be beveled as at 40 which part will have, preferably soldered thereto as at 47 a member 48 spaced laterally of and disposed parallel to said part to form a guide, the arrangement of levers 45 and 38 being such that the member 48 will be outside the trip tube lever 28 so that said lever may be disposed between the beveled part 46 and said guiding member and thereby said levers 38 and 45 will be held in fixed positions laterally so that they cannot ride from side to side on the stud 30.

The lever 45 is formed at 49 with a bent or curved portion which terminates in a deflected arm 50 disposed substantially at right angles to the lever 38 and projecting beyond it as clearly shown in said figures, 1 to 4 inclusive, said arm 50 formed with a notch 51 for engagement with the upper edge 52 of the lever 38. A screwbolt 53 is arranged to screw into the free end of the arm 50 to adjust a chain holding member 54 secured thereto, said bolt being held in position by a thumb nut 55 screwed thereupon, and said member 54 having a lug 56 over which a link of the chain 57 is slipped and held against displacement, said chain 57 provided with a hook 58 at its free end which is held in engagement with one end of the rock lever 18, as clearly shown in Fig. 7.

Normally the position of the lovers 38 and 45 will be as follows: The lever 38 will have its free end resting on stud 30 and the notch 51 of lever 45 will lie in engagement with the upper edge of lever 38 as clearly shown in Fig. 9. It will be noticed, as clearly shown in Fig. 1, that the portion 49 of lever 45 is curved laterally out of its plane and that when the deflected arm 50 is held in engagement with the lever 38 the part of lever 45 disposed forwardly of the portion 49 will be obliquely arranged relatively of the axis of lever 38 as shown in Fig. 5, so that the beveled portion 46 and guide member 47 formed on lever 45 will be above the lever 38. The purpose of forming the bent portion 49 is to provide clearance for the retractile spring 35, so that lever 45 shall not come in contact with said spring when lever 38 is caused to drop into alining position against stud 30. The levers 45 and 38 both rest normally upon the stud 30 and it will therefore be understood that the deflecting arm 50 is formed so as to create enough leverage to lift the lever 45, this action preceding the dropping of lever 38.

The timing of the parts of my invention relatively to the casting machine is an important feature and will now be described: It will be noticed that lever 38 is capable of moving vertically on its pivot 39 and the movement desired to throw it into 0perative position is in a vertical plane so that when the trip tube 31 is temporarily advanced the concave end of lever 38 may be presented against the stud 30 to intercept its return to normal position, said lever 38 projecting normally forwardly of the trip tube lever 28 as shown in Fig. 5. The hook 58 carried by the chain 57 will be placed on rock lever 18 between the justification lever 17 and the pivot 23 which is to be its position at all times in order that the device may operate automatically. By reason of the notch in the deflecting arm 50 the lever 38 is supported so as not to fall below the stud 30, by the aid of the fulcrum stud 44 forming part of lever 38, the notched surface acting as a check for the adjusting screw end of lever 45 when it is at rest on lever 38, as shown in Fig. 5. Since lever 45 is fulcrumed to lever 38 and since the greatest part of lever 45 is from the stud 44 to the deflecting arm 50 it will be seen that, if lever 45 be supported at opposite ends then lever 38 may be supported similarly, the support therefor at one end being the pivot 39 and at the other end the stud 44, the support for lever 45 being at one end chain 57 and at the other end the stud 30 through lever 38. It will be obvious that if stud 30 be moved away from lever 38 said lever would still be suitably supported. Owing to the notch in lever 45 the chain will not be shifted unless it is pulled. The free end of lever 38 when it is normally at rest upon stud 30 will be slightly raised as clearly shown in Fig. '5, and there is to be a little slack in the chain 57 so that as the forward end of lever 45 is obliquely disposed relatively to the stud 44 the deflecting arm 50 may by its own weight rest upon lever 38, the notched surface 51 engaging the edge 52 thereof. If lever 38 were not fulcrumed upon lever 45 it would fall to a swinging position when stud 30 was retracted thereunder, as will be described, and the beveled end 46 of lever 45 has been so constructed as tosupport lever 38 when said stud shall have been retracted. The arrangement of the two levers is also such that when lever 38 bears upo-n stud 30 it will fit into the notch in lever 45 when the chain is still under slack, but when chain 57 is pulled, and lever 38 is alongside the stud, then lever 45 being on said stud may exert a leverage whereby lever 38 may be moved again to position, upon said stud. It follows that lever 38, when freed from stud 30 will not be able to fall more than lever 45 allows. It will be practical to let in. represent the greatest forward movement of trip tube lever 28 and to let lever 38 have 5; in. bearing on stud 30 which will allow stud 30 itself to move g; in. in front of lever 38 and therefore there is no possible way for lever 45 to fail to support lever 38 when stud 30 is retracted from thereunder. In this way lever 38 will be prevented from falling below stud 30 which would prevent the concave surface of said lever from receiving said stud in its reverse movement which is essential to prevent the pump casting type again. A

The mode of operation of my device is as follows: When the justification wedge lever arm 1 is moved forwardly by the raising of the air pin 9 in the conventional manner the bell crank lever will be raised, and impinging against the lug 6, will move the rod 1 on the lifting lever 3; when lever 3 is at the bottom of its stroke, and as the rod 1 is moved into the groove 4, the bearing 5 will move on the top step of lever 3. Since the upstroke lifts the rod 1 by means of bearing 5 the justification wedge lever will be lifted, which will lift the justification wedge .0005 on plate 21; as lever 12 moves its lower free end will be caused to move against the rock lever 18 the normal position of which is clearly shown in Fig. 7. As known to those skilled in the art, the ends 16 and 17 of the levers 12 and 13 cannot move at the same time, one of said lower portions serving as an abutment for one end of rock lever 18 to bear against as the opposite end of said lever moves with the galley trip rod 24. Since wedge lever 16 is actuated and the wedge lever 17 cannot move rearwardly the adjacent end of rock lever 18 will be moved forwardly while its opposite chain engaging end still bears against the lower por tion 17 of wedge lever 13. This is clearly shown in Fig. 7 As the rock lever 18 is moved by the justification wedge lever 12 the galley trip rod 24 will obey its movement since the trip arm 22 which is secured rigidly to the galley trip 24 will be moved through the stud 2 by the rock lever 18. It will be noticed that when this action takes place the chain 57 will not be drawn or pulled away so that the lever 45 of my auto matic device will not be lifted. The arm 22 has its shoulder 26 fixed in engagement with the stud 27 formed upon the pump trip tube lever 28 and will move said lever as it moves forwardly and as the lever 28 moves for wardly the pump trip tube 31 will obey its movement thereby causing the stud 30 to advance forwardly of the concave end of the lever 38, and said stud will move sufficiently far to become disengaged therefrom, the movement being against the tension of the retraetile spring 35. As hereinbefore described the free end of lever 38 will be supported by the fulcrum 44 although the stud 30 shall no longer provide a support there for, and as the concave end of said last named lever cannot fall below a position in alinement with the stud 30 when the retractile spring reco-ils to restore the stud to its normal-position said stud will be received in the concave portion 43 of the lever 38, said lever having been tilted when the stud 30 has been retracted therefrom and as the forward beveledsurface 46 of the lever 45 still rests upon and cannot ride clear of the lever arm 2 shall have been actuated in a manner similar to that described in the con nection with the arm 1. As the lever 28 is held in its qualified position, the pump trip tube 31 will be held in inoperative position'since the collar 32 mounted thereon will be held behind the pump operating latch 33 whereby the castinr machine will stop working and no more metal will be supplied to the mould in which the type is cast.

When the justification wedge lever arm 2 is actuated by means of the lifting lever 3, air admitting pin 59'having been moved in the conventional manner, the justification wedge lever 13 will be actuated, while the lever 28 is still in its qualified position,

' shown in Fig. 6. It is arranged to move slightly forward to enable the concave end of lever 38 to be restored to normal position. The lower end 17 of ustification wedge lever 13 will be actuated to move forwardly and will thereby move the chain carrying which wedge lever is prevented from movportion of the rock lever 18 forward as clearly shown in Fig. 7 while the opposite end of said rock lever is still bearing against the lower end 16 of the wedge lever 12,

ing rearwardly as is known; since the hook 58 carried by the cha1n-67 engages the rock lever 18 when the portion 17 engages said rocking lever the hook 58 will move forwardly and thereby pull the chain 57, since the galley trip rod will through the instrumentality of the arm 22 be moved forwardly in unison with the rock lever 18. The arm 22 will move the lever 31 slightly forward to a distance equal substantially to l in. whereupon the stud 30 will be retracted from the concave surface 43 of the lever 38 in which it is disposed, and while this is taking place the pull upon the chain 57 will lift the adjusting screw end of the lever 15 to cause the forward bevel or end thereof to cooperate with the fulcrum 44C to lift the forward end of the lever 88, which will virtually swing upwardly and out of range of the stud 80. It will then be free to return to normal position as the retractile spring 55 recoils. In this way the levers 38 and 45 will be restored to normal position and as said levers return to normal position the pump trip tube 31 will be retracted and will restore the trip tube collar 32 from behind the latch 33 so that by means of mechanism known to those skilled in the art the metal ejecting mechanism may be actuated which supplies the metal to the mold in which the type is cast.

It will be noticed that when the lever 28 is restored to normal position it will also restore the arm 22 and rock lever 18 to normal position so that there will again be a slack in the chain 17 to enable the automatic pump stop to repeat its operation.

Numerous modifications may be resorted to in practice without departing in principle from the details of construction shown.

I claim and desire to secure by Letters Patent:

1. In combination with a pump trip tube having a stud, means for moving said tube forwardly, means for automatically retracting said tube, a lever arranged to engage said stud after said tube has moved forwardly, means for supporting said lever, and means arranged to automatically disengage said lever.

2. In combination with a pump trip tube having a stud, means for moving said tube forwardly, means for automatically retracting said tube, a lever arranged to engage said stud after said tube has moved forwardly, means for supporting said lever, and means controlled by said first named means for disengaging said lever.

3. In combination with a pump trip tube, a lever arm arranged to move said tube forwardly, means for actuating said lever arm, means for automatically retracting said tube, a stud upon said arm, an arm adjacent to said stud, means carried by said last named arm automatically engaging said stud to hold said tube against return movement, and means for automatically disengaging said stud-holding means.

4. In combination with a pump trip tube, a lever arm arranged to move said tube forwardly, means for actuating said lever arm, means for automatically retracting said tube, a stud upon said arm, means engaging said stud to hold said tube against return movement, said lastnamed means being controlled by said first-named means, and means carried by said last-named means engaging said stud to disengage said stud-holding means.

5. In combination with a pump trip tube, a lever arm arranged to move said tube forwardly, means for actuating said lever arm, means for automatically retracting said tube, a stud on said arm, an arm normally held out of contact with said stud, means carried by said arm engaging said stud to hold said tube against return movement, and means for automatically actuating said arm to engage said stud to cause said stud-holding means to be disengaged.

6. In combination with a pump trip tube, a lever arm arranged to move said tube forwardly, means for actuating said lever arm, means for automatically retracting said tube, an arm normally bearing on said tube and having a socket at its forward end, a lever pivoted to said last named arm, said lever arranged to cause the socketed end of said arm to hold said tube against return movement, and means controlled by said first named means and engaging said lever to automatically disengage the socketed end of said arm.

7. In a device of the kind described in combination with a pump trip tube, a lever arm, a stud projecting laterally through said tube, a rock lever, two justification wedge levers each bearing in alinement against an end of said rock lever, and means carried at the center of said rock lever for moving said lever arm, each wedge lever arranged to move the adjacent end of said rock lever forwardly, a member bearing on said stud and having a socket therefor, said tube, when one end of said rock lever is moved riding clear of said member, means for automatically retracting said tube, said member being automatically lowered to cause said stud to be held, against return movement in said socket, and means actuated when the other end of the rock lever is moved, to restore said member to normal position.

8. In a device of the kind described in combination with a pump trip tube, a lever arm, a stud projecting laterally through said tube and arm, a rock lever, two justification wedge levers, each bearing in alinement against one end of said rock lever, and means carried at the center of said rock lever for moving said lever arm, each wedge lever arranged to move the adjacent end of the rock lever forwardly, an arm having its forward end projecting from and bearing on said stud, said tube being moved forwardly as one end of the rock lever is actuated, the forward end of said arm arranged to occupy the space from which said tube has moved, means for holding said arm in its last named position, means for automatically retracting said tube and means for automatically disengaging said last named arm.

9. In a device of the character described in combination with a pump trip tube, a

post at one side thereof, an arm for moving said tube forwardly, a stud laterally projecting through said tube and arm, a stud below said tube, a retractile spring connecting said last named stud to said post, a trip arm connected at its lower end to said arm, a rock lever pivoted at its center at the upper end of said trip arm, and justification wedge levers bearing against the opposite ends of said rock lever, one of said wedge levers being stationary as the other moves the adjacent end of the rock lever forwardly, a sleeve upon said post, an arm pivoted to said sleeve projecting in advance of and bearing on said first named stud, said arm formed at its free end with a concave recess into which the first named stud is arranged to fit, a lever pivoted to said pivotal arm rearwardly of the first named stud and having its free end projecting forwardly thereof, a member spaced laterally at the forward end of said lever between which and said lever said first named arm is disposed, there being a curvilinear portion formed upon said lever terminating in an arm straddling said last named arm to hold said lever tilted' obliquely, and a chain connected adjustably tothe free end of said straddling lever and to one end of the rock lever moved last in succession, said chain being pulled as one end of said rock lever is moved to control the movement of said lever.

10. In combination with a pump trip-tube a lever arm arranged to move said tube for wardly, means for actuating said lever arm, means for automatically retracting said tube, a stud upon said arm, means engaging said stud to hold said tube against return movement, means for operating said firstnamed means, and means controlled by said last-named means for automatically disengaging said stud-holding means.

11. In, combination with a pump trip tube, a lever arm arranged to move said tube forwardly, means for actuating said lever arm, means for automatically retracting said tube, a stud upon said arm, means engaging said stud to hold said tube against return movement, means carried by said last-named means and engaging said stud to disengage said stud-holding means, means for operating said first-named means, and means controlled by said last-named means, for actuating said disengaging means.

In testimony whereof I affix my signature in presence of two witnesses.

LUDWIG J. KROES'SER.

Witnesses:

MORTIMER A. TOOMEY, FREDERICK J. GLENN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 1). C. 

